Global Patent Index - EP 1692477 B2

EP 1692477 B2 20111012 - METHOD FOR DETERMINING THE DISC TEMPERATURE OF A MULTI-DISC CLUTCH

Title (en)

METHOD FOR DETERMINING THE DISC TEMPERATURE OF A MULTI-DISC CLUTCH

Title (de)

VERFAHREN ZUM BESTIMMEN DER LAMELLENTEMPERATUR EINER LAMELLENKUPPLUNG

Title (fr)

PROCEDE DE DETERMINATION DE LA TEMPERATURE DE DISQUES DANS UN EMBRAYAGE A DISQUES MULTIPLES

Publication

EP 1692477 B2 20111012 (DE)

Application

EP 03785814 A 20031213

Priority

EP 0314197 W 20031213

Abstract (en)

[origin: WO2005057151A1] The invention relates to a method for determining the disc temperature of a multi-disc clutch over time, said multi-disc clutch being used in the drive train of a motor vehicle and having clutch discs that are located in a housing and rotate in oil. The method comprises the following steps: setting of a first disc temperature (TLam,0); measurement of a reference temperature (TRef,i) of a medium or component, which exchanges heat at least indirectly with the clutch discs, at time intervals (i = 0, 1, 2, ...); determination of the frictional power (Pi) that is exerted on the multi-disc clutch at the same time intervals (i = 0, 1, 2, ...); and calculation of the subsequent disc temperatures (TLam,i) at the same time intervals (i = 1, 2, ...) from the respective preceding disc temperature (TLam,i-1), the measured reference temperatures (TRef,i) and the determined frictional powers (Pi).

IPC 8 full level

G01K 13/08 (2006.01); F16D 13/64 (2006.01); F16D 13/72 (2006.01); F16D 48/06 (2006.01)

CPC (source: EP)

F16D 48/06 (2013.01); G01K 13/08 (2013.01); F16D 2300/02 (2013.01); F16D 2500/10412 (2013.01); F16D 2500/1045 (2013.01); F16D 2500/30405 (2013.01); F16D 2500/30406 (2013.01); F16D 2500/3069 (2013.01); F16D 2500/30805 (2013.01); F16D 2500/3115 (2013.01); F16D 2500/3122 (2013.01); F16D 2500/3166 (2013.01); F16D 2500/50296 (2013.01); F16D 2500/702 (2013.01)

Citation (opposition)

Opponent :

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005057151 A1 20050623; AT E389165 T1 20080315; AU 2003294850 A1 20050629; DE 50309390 D1 20080424; EP 1692477 A1 20060823; EP 1692477 B1 20080312; EP 1692477 B2 20111012

DOCDB simple family (application)

EP 0314197 W 20031213; AT 03785814 T 20031213; AU 2003294850 A 20031213; DE 50309390 T 20031213; EP 03785814 A 20031213